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- •Foreword
- •Foreword
- •Preface
- •Contents
- •Contributors
- •Introduction
- •Epidemiology
- •Etymology
- •Bladder Exstrophy Pathophysiology
- •Conclusion
- •References
- •Normal Development
- •Introduction
- •Prenatal Imaging
- •Prenatal Counseling
- •Epispadias
- •Classic Bladder Exstrophy
- •Cloacal Exstrophy
- •BEEC Variants
- •Prenatal Management
- •Genetic Counseling
- •Conclusion
- •References
- •3: Bladder Exstrophy Genetics: Our Current Understanding
- •Bladder Exstrophy Genetics
- •Copy Number Variant (CNV) Studies
- •Gene Expression Studies
- •Genome-wide Association Study (GWAS)
- •Future Directions
- •References
- •4: Prenatal and Postnatal Imaging of the Bladder Epispadias-Exstrophy Complex
- •Introduction
- •Prenatal Imaging Findings
- •Bladder Exstrophy
- •Cloacal Exstrophy
- •Isolated Epispadias
- •Exstrophy Variants
- •Postnatal Imaging Findings
- •Urinary System
- •Musculoskeletal System
- •Spine
- •Conclusions
- •References
- •Introduction
- •Bladder Growth
- •Urinary Continence
- •Conclusions
- •References
- •6: Complete Primary Repair of Bladder Exstrophy and Epispadias
- •Bladder Neck Reconstruction, Bladder/Urethral Closure
- •Pubic Bone Closure
- •Umbilicoplasty
- •Immobilization
- •Urethral Plate Dissection
- •“Grady Monsplasty”
- •Complications
- •Conclusion
- •References
- •Introduction
- •Prenatal Diagnosis
- •Anatomic Anomalies
- •Immediate vs Delayed Closure
- •Surgical Reconstruction
- •Immobilization Techniques
- •Epispadias Repair
- •Achieving Urinary Continence
- •Proposed Follow-Up
- •Future Directions
- •Conclusion
- •References
- •8: The Kelly Procedure
- •Introduction
- •Tension-Free Bladder Neck Construction
- •Postoperative Management
- •References
- •Introduction
- •Anesthesia
- •Incision
- •Bladder Plate Mobilization
- •Radical Corporal Detachment
- •Osteotomy
- •Ischiopubic Osteotomy
- •Transverse Innominate Osteotomy
- •Corporal-Urethral Separation
- •Reconstruction
- •Postoperative Management
- •Follow-Up
- •Results
- •Conclusion
- •References
- •Introduction
- •Surgical Procedures
- •References
- •Bilateral Ureteral Advancement Reimplantation
- •Pelvic Osteotomy
- •Preoperative Testosterone Administration
- •Epispadias Repair
- •Penile Skin Reconstruction
- •Continence Enhancement
- •Conclusion
- •Introduction
- •Background
- •Modified Perineal Approach Surgical Technique
- •Discussion
- •References
- •Introduction
- •Posterior Iliac Osteotomies
- •Anterior/Double Iliac Osteotomies [3, 14]
- •Anterior Oblique Iliac Osteotomies [5, 11]
- •Anterior Bilateral Superior Pubic Rami Osteotomies [4]
- •Postoperative Immobilization
- •Complications/Long-Term Outcomes
- •References
- •Ureteral Reimplantation
- •Inguinal Hernia
- •Monsplasty
- •Umbilicoplasty
- •References
- •Introduction
- •Ureterosigmoidostomy
- •The Sigma-Rectum Pouch (Mainz Pouch II)
- •The Cologne Pouch
- •Conclusion
- •References
- •15: Cloacal Exstrophy
- •Introduction
- •Epidemiology
- •Embryologic Etiology
- •Prenatal Findings
- •Urinary
- •Gastrointestinal
- •Neurologic
- •Musculoskeletal
- •Genital
- •Management
- •Neonatal
- •Surgical Reconstruction
- •Secondary Procedures
- •Outcomes
- •Urinary Continence
- •Renal
- •Fecal Continence
- •Gender Rearing
- •Nutrition
- •Mobility
- •Psychosocial Outcomes
- •Conclusion
- •References
- •16: Male Epispadias
- •Embryology
- •Anatomic Features
- •Epispadias Repair
- •Pelvic Osteotomy
- •Modified Cantwell-Ransley Repair
- •Urethral Reconstruction
- •Bladder Neck Reconstruction
- •The Mitchell Repair
- •Initial Dissection
- •Penile Disassembly
- •Proximal Dissection
- •Bladder Neck Reconstruction
- •Primary Closure
- •Skin Closure
- •Outcomes
- •Fistula Formation
- •Urethral Stricture
- •Residual Curvature
- •Urinary Continence
- •Sexual Function
- •Renal Function
- •Female Epispadias
- •Outcomes
- •Conclusion
- •References
- •Introduction
- •Pre-operative Factors
- •Technical Aspects
- •Management
- •Failed Genital Reconstruction
- •Ureterosigmoidostomy
- •Augmentation Cystoplasty
- •References
- •Background
- •Preoperative
- •Monitoring
- •Intraoperative Management
- •Postoperative Management
- •Conclusion
- •References
- •Mental Health Concerns
- •Local Priority
- •Resources
- •Clinical Care
- •Capacity Building
- •Research
- •General Principles
- •References
- •Introduction
- •Defining Continence
- •Continence versus Dryness
- •Dry Interval: How Long Is Long Enough?
- •Dry Intervals: What Is Meaningful
- •Diversion Versus Continence
- •Timing
- •Challenging Dogma
- •References
- •Introduction
- •Preoperative Counseling
- •Bladder Neck Bulking Agent Injection
- •Artificial Urinary Sphincter
- •Bladder Neck Reconstruction
- •Bladder Neck Closure
- •Continent Catheterizable Channel: Mitrofanoff Principle
- •Augmentation Cystoplasty
- •Continent Urinary Diversion
- •References
- •22: Urinary Reconstruction for Bladder Exstrophy in the Developing World: Special Consideration and Technique
- •Introduction
- •Operative Technique
- •The Final Reconstruction
- •Young-Dees-Leadbetter Bladder Neck Plasty
- •Bladder Neck Closure
- •Operative details
- •Discussion
- •Conclusion
- •References
- •Introduction
- •Nephrology Evaluation
- •Measuring Kidney Function
- •Evaluating Blood Pressure
- •Imaging Studies
- •Transplant
- •References
- •Introduction
- •Post-operative Nursing Care
- •Pain Control
- •Immobilization
- •Orthopedic Care
- •Parental Teaching
- •Conclusion
- •Bibliography
- •Introduction
- •Pelvic Floor Musculature
- •Physical Therapy Evaluation
- •Participation
- •Activity
- •Impairment
- •Physical Therapy Intervention
- •Pre-toilet Training
- •Toilet Training
- •Post-toilet Training
- •Day Versus Night
- •Constipation
- •References
- •Pediatric Psychology
- •Infancy
- •Childhood
- •Adolescence
- •Adulthood
- •Future Directions
- •References
- •Females
- •Males
- •Erectile Function
- •Ejaculatory Function
- •Recommendations
- •Literature
- •Gynecologic Anatomy
- •Puberty
- •Pelvic Organ Prolapse
- •Fertility
- •Obstetric Considerations
- •Conclusions
- •References
- •Introduction
- •Patient Advocacy
- •Peer Support
- •Local Support Groups
- •Medical Advisory Council
- •Annual Conferences
- •Global Health Inequities
- •Global Health Initiatives
- •Advocacy Considerations
- •Patient-Directed Research
- •Patient Advisory Councils
- •Conclusion
- •References
- •Index

7 The Modern Staged Repair ofClassic Bladder Exstrophy
125
introitus and vagina must be reconstructed to allow placement of feminine products,
including tampons, or even to adequately allow for penetrative intercourse [63].
Utilizing the Female Sexual Function Index, or FSFI, Canalichio etal. found that
women with exstrophy scored lower across all domains in the FSFI, including
desire, arousal, and lubrication [64]. Though EEC affects males at a rate of 3-to-1,
research and improvements in the quality of life for women along the EEC spectrum
deserve just as much focus and attention.
Conclusion
The EEC remains one of the most challenging diagnoses for reconstructive surgeons, owing to its inherent rarity. Add to this the infrequency with which it is seen
and operated on, and the complex can easily overwhelm. However, several surgical
techniques now exist to allow these children to not only survive infancy but also
lead long and productive lives. The MSRE, championed at the authors’ institution,
remains the most commonly used method for closure and the technique against
which others are compared. It is our hope that, regardless of the technique utilized,
careful consideration of the bony pelvis, with a low threshold to perform pelvic
osteotomies followed by lower limb immobilization, along with aggressive soft tissue mobilization, remains at the forefront of the reconstructive surgeon’s mind and
arsenal.
Dedication This chapter is dedicated to the extraordinary talent and humility of
Douglas A.Canning, MD, a leader in exstrophy care who completed his pediatric
urology training at Johns Hopkins in Baltimore, MD, before ultimately becoming
Professor and Chief of Pediatric Urology at Children’s Hospital of Pennsylvania
in Philadelphia, PA.His legacy lives on in the trainees lucky enough to learn from
him, in colleagues he helped mentor, and in the countless lives he touched caring
for patients and their families. His calm, thoughtful, and kind nature is
sorely missed.
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C. B. Crigger and J. P. Gearhart

The Kelly Procedure
NavroopS.Johal, MehakSehgal, andImranMushtaq
Introduction
Bladder exstrophy (BEX) represents a signicant reconstructive challenge for the
paediatric surgeon and urologist. The incidence of BEX is 1in 46,000 live births
and is twice as common in males compared with females [1]. In the past, children
born with this condition were condemned to poor outcomes and, for many, an unfortunate quality of life, with little prospects for education, employment and relationships. Even today in some countries these outcomes remain the reality for patients
with bladder exstrophy. Nevertheless, early diagnosis, prompt initial management
and novel surgical reconstructive techniques have resulted in reduced morbidity and
signicant improvements in the long-term quality of life.
There are several factors involved in the success of managing a patient with bladder exstrophy, and it is not solely based upon a successful operative closure in the
neonatal period, even though we know that children requiring a redo closure fare
less well in terms of urinary continence [2]. It is paramount that treatment is undertaken by a bladder exstrophy specialist who has an understanding of the altered
anatomy and appreciates the evolution of bladder development, increase in capacity
and function throughout childhood and into adulthood. The bladder exstrophy specialist should be part of a bladder exstrophy multi-disciplinary team comprising one
8
Supplementary Information The online version contains supplementary material available at
[https://doi.org/10.1007/978-3-031-91238-2_8].
N. S. Johal · M. Sehgal · I. Mushtaq (*)
Department of Paediatric Urology, Great Ormond Street Hospital for Children NHS
Foundation Trust, London, UK
© The Author(s), under exclusive license to Springer Nature
Switzerland AG 2025
A. R. Shukla, R. S. Joshi (eds.), Bladder Exstrophy and Epispadias,
https://doi.org/10.1007/978-3-031-91238-2_8
129

130
N. S. Johal et al.
or more urology nurse specialists, psychologist, gynaecologist and orthopaedic specialist. In the United Kingdom, bladder exstrophy care has been centralised to two
centres for the last 20years, with the main objective having been to improve outcomes. It is also essential that there exists a pathway for children with bladder
exstrophy to transition to an adult or adolescent urologist, and for that individual to
possess the same appreciation for the condition and most importantly to have a
thorough understanding of the previous surgeries that would have been undertaken.
It is without doubt that Justin Kelly made one of the most noteworthy contributions to the management of children with BEX when he rst described in 1971 ‘a
procedure for lengthening the phallus in boys with exstrophy of the bladder’, which
we now understand universally as the ‘Kelly procedure’ [3]. It is somewhat ironic
that a small spelling mistake in his surname on that publication has kept this paper
concealed from those seeking a better understanding of his operation, which still
remains somewhat of an enigma if it has not been witnessed it in person. Justin
Kelly rst encountered patients with BEX during his fellowship training in Boston
where he worked with Robert Gross in the late 1960s [4]. He encountered many
patients with disappointing clinical outcomes whom at the time were undergoing a
cystectomy and ureterosigmoidostomy. Although they were continent of urine, it
was evident that the older male patients with BEX were psychologically scarred by
the short penile length and reportedly some males were committing suicide [4].
Justin Kelly undertook a detailed anatomical dissection of the male genitalia in the
autopsy room and conceptualised a new technique that would enhance and ‘normalise’ the anatomy. He initially proposed the procedure to lengthen the penis in
male patients with bladder exstrophy [3]. He described the identication and mobilisation of the neurovascular pedicle within Alcock’s canal that supplied each of the
corporal bodies and a method for detaching the corporal bodies from their attachment to the ischiopubic ramus (Fig.8.1). This manoeuvre would allow the corporal
bodies to come into approximation and move out of the pelvis, thereby enhancing
the visibility of the penis. Over time Justin Kelly modied and further rened the
technique, both when he returned to Melbourne, Australia, and subsequently at
Great Ormond Street Hospital for Children, London. By the time he was working in
London, the Kelly procedure had already matured from a penile lengthening to a
continence procedure, by virtue of the fact that the exposure achieved by the radical
dissection allowed an orthotopic reconstruction of the bladder neck and an external
urethral sphincter mechanism.
At our institution for the past 20years, the surgical pathway for bladder exstrophy, for both males and females, has comprised a neonatal bladder closure without
osteotomy followed by a Kelly procedure at 12–18months of age. The bladder neck
is constructed in a more gentle manner and provides a xed outlet resistance for a
gradual increase in bladder capacity over the ensuing years. This is supplemented
with a more dynamic outlet resistance achieved through the implementation of
nurse-led biofeedback therapy once the child is 6–8years of age. Patients are monitored with ultrasound imaging of the urinary tract, non-invasive and invasive urodynamic evaluation into late adolescence before transitioning to the adult urology
services.

8 The Kelly Procedure
Fig. 8.1 Original hand
drawing by Justin Kelly of
the identication and
exposure of the pudendal
neurovascular bundle
131
Operative Steps oftheKelly Procedure inMales (Video 1)
As mentioned above, all our BEX patients undergo bladder closure in the early
neonatal period, with high successful closure rates without the need to perform
pelvic osteotomy [5]. To achieve a tension free bladder closure, it is essential to
release the bladder detrusor from the rectus muscles laterally, extending down distally to just above and lateral to the verumontanum in boys and the vaginal opening
in girls. At this level, posteriorly will be encountered the ‘tight’ interpubic bands,
also known as intersymphyseal bands, which need to be fully divided on each side
in order for the construction of the bladder neo-meatus, which should be close tting on a 8 Fr urethral stent. Despite this somewhat radical dissection at the time of
initial bladder closure, we do not encounter difculty with further dissection in this
region at the time of the Kelly procedure.
In his original publications of this operation, Justin Kelly described it as a ‘radical soft tissue mobilisation’, but those who have adopted this technique prefer to
address it as a Kelly procedure. Just as the name has altered a little, the key components have done so also. For example, ureteric reimplantation and creation of a

132
N. S. Johal et al.
hypospadiac urethral meatus are no longer considered by many as mandatory for
success in terms of continence and cosmesis. In our opinion, a Kelly procedure
should, however, comprise the following key steps:
• Radical mobilisation of the pelvic musculature and corpora
• Identication and preservation of the pudendal neurovascular bundles
• Construction of an orthotopic bladder neck
Deconstruction: Opening Midline Wound andDegloving ofPenis
A 4/0 Prolene suture is placed through the glans to aid retraction. The skin incision
marked along the previous incision, encircling the urethral neo-meatus and then
extending to either side of the urethral plate and meeting ventrally in region of the
frenulum of the penis. The previous lower midline wound is opened and deepened
to the level of the rectus muscle. The skin and subcutaneous tissues are raised extensively to achieve a full exposure of the rectus muscle and pubic tubercles. The rectus
is incised in the midline taking care to avoid, if possible, a breach in the peritoneum.
It is also desirable to not breach the bladder, which is often adherent to the under
surface of the rectus muscle. The incision continues around the penile shaft skin
leaving a mucosal cuff below the glans. The penis is fully degloved to expose lateral
and ventral surfaces of the corporal bodies. This dissection should continue proximally along the corporal bodies to expose their attachment to the ischiopubic ramus.
In this region, a triangular area of bulbospongiosum and overlying muscle will
come into view. The bulbospongiosus muscle runs horizontally between the ischiopubic rami, over the surface of each corporal body and meeting in the midline. The
preservation of this muscle is vital as it will be used to create an external urethral
sphincter.
The bladder should be separated from the rectus muscle, taking care not to damage the detrusor muscle. The dissection should continue inferiorly towards the trigone and area of the verumontanum, until the point is reached where the attachment
of the corpora to the ischiopubic ramus is visualised. It is essential to preserve an
adequate amount of detrusor muscle in the region of, and proximal to, the verumontanum, as this will be utilised for the placement of the sutures in the construction of
the bladder neck.
Identification ofPudendal Neurovascular Bundle
Before the corpora is detached from the ischiopubic ramus, the pudendal neurovascular bundle (artery, veins and nerve) to each corpora should be localised. The rst
step is to expose the pelvic muscular oor (levator ani) by retracting the bladder

8 The Kelly Procedure
Fig. 8.2 Operative image
demonstrating location of
pudendal neurovascular
bundle
133
medially, going deep into the pelvis until the ischial spine can be localised by palpation. The neurovascular bundle runs within Alcock’s canal, which lies beneath the
pelvic oor musculature. The pelvic oor is opened with bipolar cautery along an
imaginary line that extends from the rst point of union between the corpora and the
ischiopubic ramus anteriorly to the ischial spine posteriorly. Once incised, the
underlying ischiorectal fat is retracted inferiorly until the neurovascular bundle can
be seen through the fascia of Alcock’s canal. The pudendal vein usually receives a
tributary from the obturator internus through a small perforation in the fascia of
Alcock’s canal. This ‘constant’ vein is a helpful landmark for the localisation of
Alcock’s canal and the pudendal neurovascular bundle within. The overlying fascia
is incised along its length exposing the neurovascular bundle (Fig.8.2). Once identied, attention then moves to detachment of the corporal bodies.
Detachment ofCorpora andRelease ofthePenis
The corpora need to be fully released medially from the ischiopubic rami. Monopolar
cautery is used to make an incision approximately 5mm above and lateral to the
attachment of the corpora to the pubic bone, extending through the periosteum/
perichondrium to the surface of the bone. Using a periosteal elevator and/or an
artery forceps, the corpora is peeled off the pubic bone in an inferior direction with
a ake of ischium and pubis, exposing the underlying white-coloured perichondrium. Care must be taken to always keep the neurovascular bundle in sight, and as
the separation advances the neurovascular bundle will be seen to enter the tail of the
corpora. Moving posteriorly from this point, dissection and division of brous
attachments of the corpora lateral to the neurovascular bundle will release the corpora entirely (Figs.8.3 and 8.4).

134
Fig. 8.3 Original hand
drawing by Justin Kelly
showing the fully detached
corporal body and released
pudendal neurovascular
bundle
N. S. Johal et al.
Fig. 8.4 Operative image
demonstrating detachment
of corpora from
ischiopubic ramus (black
arrow), ake of pubis
(green arrow) and
pudendal nerve (yellow
arrow)
Disassembly ofCorpora andUrethral Plate
Using either sharp dissection or monopolar needle cautery (set at level 8 or 10), the
2 corpora are separated from the dorsally placed urethral plate. The corpora are not
detached from the glans distally. The separation of the corpora from the urethral
plate is often a bloodless dissection and extends proximally only as far as the region
of the prostate gland. This landmark is often heralded by the onset of brisk bleeding
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